vherolf

## install haven library first.
# install.packages("haven")
#
## run with
# Rscipt convert.R
#

library("haven")

dataframe <- read_sav("input.sav")

vherolf

# add to .zshrc or .bashrc

alias vnv='python3 -m venv venv --prompt . && source ./venv/bin/activate && pip install -U pip setuptools wheel pip-tootls &> /dev/null'
alias ae="source ./venv/bin/activate"
alias req="pip install -r requirements.txt"

vherolf

#!/bin/bash

##
##  dvgrab
## 
##  use dvgrab to archive old DV tapes to mp4
##
 
dvgrab -size=0 -rewind -t mpeg2  -showstatus  -timesys -autosplit=10000  dv-grabbed-video.dv

vherolf

#!/bin/bash

##################################
## vertical 2 way sidebyside merge
##################################

ffmpeg  -i 1.mp4 -i 2.mp4  -filter_complex "[0:0]pad=iw*1:ih*2[out1];[out1][1:0]overlay=x=0:y=h" -c:a copy -c:v libx264  output.mp4

####################################
## horizontal 2 way sidebyside merge

vherolf

#!/bin/bash

## for cisco switches
## scan from network wall socket to find on with switch port it is connected
##

tcpdump -nn -vv  ---interface=eno1 --snapshot-length=1500 -c 1 'ether[20:2] == 0x2000'